Regenerative furnace.



M. WEISS.

REGENERATIVE FURNACE.

APPLIOATION FILED APR.13,1911.

Patented NOV. 26, 1912.

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M. WEISS.

REGENERATIVE- FURNACE.

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Patented Nov. 26, 19132.

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MORITZ WEISS, OF. BESICA, AUSTRIA-HUNGARY.

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1,045,650, Specification (if Letters Patent.

Application filed A ril 13, 1911. Serial No. 620,929.

To all whom it may concern:

. of regenerative chambers, one of which is adapted to receive theproducts of combustion from the furnace while the opposite chambersimultaneously receives a charge. of fresh air which becomes thoroughlyheated by passing through and absor ing the heat from the checker workof said chamber, each of these regenerativechambers being controlled bysuitable valves to reverse the passage of the air and products ofcombustion and each of said chambers also communicating'with a singlechannel way which leads to the combustion chamber of the furnace so thatthe re-heated air will at all times enter the said combustion chamberand flow in a given direction and thus cause the flame to act in aconstant direction.

In the accompanying drawings illustrating my invention, Figure 1 is adiagrammatic view of my invention showing the general arrangement inconnection with a urnace or oven, Fig. 2 is a horizontal section of mydevice, Fig. 3 is'a vertical section through the coldreversing chamberand valves, Fig. 4 1s a vertical section through the hot reversing'valves, and Fig. 5 is a vertical section through the cold reversingvalves.

In my improved apparatus, the waste heat employing device is incontrolled communication with' the outlet of a furnace for the productsof combustion and is interposed in the course of these products to thestack.

It is in communication with the supply of air to the device through thefurnace. The apparatus for using the waste comprises a series ofcommunicat'png chambers containing checker-work 'of re brick andseparately controlled. This checker-work is intensely heated by theWaste products of combustion admitted to the several 'cham-. bersalternatelyand the temperature of said roducts is considerably reducedon reach mg the stack, by which means undue heatingv of thestack isprevented. When one chamber has become unduly heated communicationbetween the furnace and stack is opened through another similar chamberof checker-work and the first process is repeated. The chamber alreadyheated is opened to the air which circulates from the Patented Nov. 26,1912.

coldest part of the regenerator to its hottest part and is heated on itsway to the combustion chamber ,by the employment of counter currents.

The following is a description of my improved .device' A is a furnacehearth, B is the combustion chamber, D and E are the chambers ofchecker-work, F is the flue leading from the furnace to the chambers.

M and K are ports leading from the chambers to the hot air chamber L Hand -N are similar ports adapted to direct the flow of the waste, heatfrom the flue F through the cold chamber.

O and P are double acting valves adapted to open and close the first andsecond sets of ports alternately and externally controlled at O and P Qand Q are openings between the port openings and the respectivechecker-work chambers.

S and S are ports of the chambers communicating both with the inlet S,for admission of cold air and with the'stacln T is the cold air andwaste gas reversing valve: I

V is the entrance to the stack.

Air is supplied tothe combustion chamber B from the hot air chamber L,admitted from without through the port S and passing through the checkerchambers E and D alternately from ports S and S controlled by valve T.Admission into the hot air chamber L is controlled by ports M and Kwhile ports H and N make the connections between the flue F and thechambers and are closed or opened in alternate pairs as shown in Fig. 4one interior and one exterior port comprising the respective pairs.-With the ports M and N opened, air from the checker-work chamber Eflows through the passage Q and through port M to the hot air chamber Land from thence to the combustion chamber B. Hot waste gas from thehearth A passes down the flue F into the port N through the passage Qand thence through chamber D heating the checkers/ori Having given. upcart of J lv heat it passes to the stack through the port When chamber Dhas been 'suiiicientiv heated, the reversal of the valves 0, P and Treverses the course of the air and the hot gases from one of the checkerwork chambers to the other the supply to the hot air chamber L nowproceeding from the chamber D and. through the port- K. The closing; ofport N shuts off the hot air from the fur nace from chamber l) and itproceeds through port 111 to chamber E. The reverse of valve T opensport S to the air and closes port S which now conducts the gases fromchamber E to the stack V The advantages elf-my device consistessentially' in the fact that aii products of combustion must passthrough the regenerating checker-Work chambers and the inoo-m ing airflows from the coldest port of the regeneratorto its hottest port The ia that the valves 0 and P are always hot and in contact with hot gasestends lnateriaii to diminish the loss of heat sustained by a valve whichis aiternately cold and hot such as have been heretofore employed.

In combination with a furnace, a regenerating apparatus, interposedbetween the :turnace and its smoke stack; saia apparatus being providedwith two independent re 4 berating chambers having checkered inner"ills; vaive chamber adjacent tile furnace tor each regeneratingchamber; a port bei tween each valvevchamber and its regeneratingchamber; a passage from each valve 1 chamber to the combustion chamberof the r furnace; a second passage from each valve 1 chamber to thewaste gas flue of the furnace; I an inter-communicating passage betweensaicl second passages; aswing valve in each valve chamber adapted toclose the one while opening the other of either of said passe of thevalve chamber; a valve housing adjacent the smoke stack common to bothregenerating chambers; an air inlet port in said housing; a port foreach of said t reg aerating chambers in said housing; a n said housingleading to the smoke in a valve in said housing adapted to v ecommunication between the .atmos: re and one of said regeneratingchamwhile simultaneously making commu nication between the otherregenerating chamoer and the smoke-stack.

specification signed at ihe foregoing (Resioa) Budapest this 29th day ofMarch,

MORITZ WEISS.

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each, by addressing the flommissioner or latentsQ "Washington, B. L

